It was owned by the State-owned Assets Supervision and Administration Commission (SASAC) of Shanxi Provincial People's Government [zh].

Jincheng was located in one of the 13 important coal mining sites of China, namely "Jin East", which fellow state-owned enterprise Yangquan Coal Industry Group and Lu'an Mining Industry Group were also located in "Jin East".

[6] According to a publication of the National Energy Administration,[7] JAMG had a coal mining capability of 54.55 million tons in 2015, despite the list was incomplete.

[15][16] A backdoor listing was planned for a subsidiary (Chinese: 山西蓝焰煤层气集团有限责任公司; pinyin: Shānxī lányàn méicéngqì jítuán yǒuxiàn zérèn gōngsī; lit.

[18] The shareholders of JAMG, as at 31 December 2015 were the State-owned Assets Supervision and Administration Commission (SASAC) of Shanxi Provincial People's Government [zh], China Development Bank (via a wholly owned subsidiary) and China Cinda Asset Management.